CN115273361A - Misoperation monitoring method and device of air switch and computer equipment - Google Patents

Misoperation monitoring method and device of air switch and computer equipment Download PDF

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Publication number
CN115273361A
CN115273361A CN202210882692.1A CN202210882692A CN115273361A CN 115273361 A CN115273361 A CN 115273361A CN 202210882692 A CN202210882692 A CN 202210882692A CN 115273361 A CN115273361 A CN 115273361A
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China
Prior art keywords
state
air switch
display element
module
monitoring system
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Granted
Application number
CN202210882692.1A
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Chinese (zh)
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CN115273361B (en
Inventor
吕星岐
鞠翔
张函
郭康
吴镇宇
徐家将
颜帅
兰竣杰
景茂恒
黄剑湘
严俊
李仕凯
崔萌
王少楠
敬官欣
谢静
任君
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Kunming Bureau of Extra High Voltage Power Transmission Co
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Kunming Bureau of Extra High Voltage Power Transmission Co
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Priority to CN202210882692.1A priority Critical patent/CN115273361B/en
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/185—Electrical failure alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to a malfunction monitoring method and device for an air switch, a computer device, a storage medium and a computer program product. The method is applied to an air switch monitoring system. The method comprises the following steps: controlling an air switch monitoring system to execute initialization operation; in the initialized air switch monitoring system, detecting the current working state of the air switch and the loop current flowing into the overcurrent relay; if the current working state of the air switch is a disconnected state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay, the control state monitoring module generates false disconnection prompting information aiming at the air switch and controls the visual alarm module to generate sound and light alarm information; and returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the triggering condition for finishing the operation. By adopting the method, the monitoring effect of the working state of the air switch can be improved.

Description

Misoperation monitoring method and device of air switch and computer equipment
Technical Field
The present application relates to the field of power technologies, and in particular, to a method and an apparatus for monitoring a malfunction of an air switch, a computer device, a storage medium, and a computer program product.
Background
An air switch is a type of circuit breaker that automatically opens whenever the current in the circuit exceeds the rated current.
When the air switch on the secondary side of the voltage transformer is disconnected, the voltage loss condition of the protection devices of a plurality of lines can be caused, so that the plurality of lines can not be normally protected, and the safe operation of a power grid is greatly threatened. In the related art, due to the fact that the state of the air switch cannot be accurately monitored, the abnormal reason of the loop cannot be found in time, and therefore the whole loop where the air switch is located is damaged.
Therefore, the prior art has the problem of poor condition monitoring effect of the air switch.
Disclosure of Invention
In view of the above, it is necessary to provide a malfunction monitoring method, apparatus, computer device, computer-readable storage medium, and computer program product for an air switch, which can improve the state monitoring effect of the air switch.
In a first aspect, the present application provides a method of malfunction monitoring of an air switch; the device is applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored. The method comprises the following steps:
controlling the air switch monitoring system to perform an initialization operation;
detecting the current working state of the air switch and the loop current flowing into the overcurrent relay in the initialized air switch monitoring system;
if the current working state of the air switch is a disconnection state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay, controlling the state monitoring module to generate false disconnection prompting information aiming at the air switch, and controlling the visual alarm module to generate sound and light alarm information;
and returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the triggering condition for finishing the operation.
In one embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch; the controlling the state monitoring module to generate the false turn-off prompting information aiming at the air switch comprises the following steps:
controlling the first state display element to change from an on state to an off state; the opening state of the first state display element is used for representing that the air switch is in a working closing state;
controlling the second state display element to change from an off state to an on state; the opening state of the second state display element is used for representing that the off state of the air switch is a false off state;
controlling the third state display element to maintain an off state; the off state of the third state display element is used to characterize that the air switch is not in an overload off state.
In one embodiment, the air switch monitoring system further comprises a rectification module; the state monitoring module is provided with a first branch, a second branch, a third branch and a trunk; the first branch is provided with the air switch, the contactor coil and the first state display element which are connected in series; the second branch circuit is provided with a first normally closed switch corresponding to the contactor coil, a normally closed contact corresponding to the overcurrent relay and a second state display element which are connected in series; the third branch circuit is provided with a second normally closed switch corresponding to the contactor coil, a normally open contact corresponding to the overcurrent relay and a third state display element which are connected in series; the trunk circuit is provided with the overcurrent relay; the overcurrent relay is connected in series with a voltage transformer in the rectifying module and a third normally-closed switch corresponding to the contactor coil; the method further comprises the following steps:
the third normally closed switch in the rectifying module is controlled to be changed from an open state to a closed state, and the contactor coil is controlled to be changed from a power-on state to a power-off state;
the first normally closed switch in the second branch circuit is controlled to be changed from an open state to a closed state, and the normally closed contact corresponding to the overcurrent relay keeps the closed state so as to control the second state display element to be changed from the closed state to the open state;
and controlling the second normally closed switch in the third branch circuit to change from an open state to a closed state, wherein the normally open contact corresponding to the overcurrent relay keeps the open state, so as to control the third state display element to keep the closed state.
In one embodiment, the visual alarm module is provided with a controller, a voice alarm element, a wireless alarm element and a light display element; the control the visual alarm module generates acousto-optic alarm information, including:
the controller controls the voice alarm element and the light display element to change from a closed state to an open state, and controls the wireless alarm element to generate abnormal prompt information according to a preset time interval; the opening states of the voice alarm element and the light display element are used for representing that the air switch is in the off state.
In one embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch; if the current working state of the air switch is a disconnected state and the loop current is greater than a preset current threshold corresponding to the overcurrent relay, the method further comprises the following steps:
controlling the first state display element to change from an on state to an off state; the open state of the first state display element is used for representing that the air switch is in a working closed state;
controlling the second state display element to maintain an off state; the closed state of the second state display element is used for representing that the air switch is not in a false disconnection state;
controlling the third state display element to change from an off state to an on state; the on state of the third state display element is used to characterize the off state of the air switch as an overload off state.
In one embodiment, the air switch monitoring system further comprises a rectification module connected with the visual alarm module and the state monitoring module; the rectifying module is provided with a rectifying element group and a voltage transformer; the visual alarm module is provided with a filter element and a direct current voltage stabilizing element; the method further comprises the following steps:
the rectifying element group rectifies the alternating-current voltage output by the voltage transformer to obtain rectified voltage;
the filter element is used for filtering the rectified voltage to obtain a filtered voltage;
the direct current voltage stabilizing element performs voltage stabilization processing on the filtered voltage to obtain a stabilized direct current voltage; the stabilized direct current voltage is used for controlling the visual alarm module to generate acousto-optic alarm information.
In a second aspect, the application further provides a malfunction monitoring device for the air switch. The device is applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored; the device comprises:
the initialization module is used for controlling the air switch monitoring system to execute initialization operation;
the detection module is used for detecting the current working state of the air switch and the loop current flowing into the overcurrent relay in the initialized air switch monitoring system;
the control module is used for controlling the state monitoring module to generate false on-off prompting information aiming at the air switch and controlling the visual alarm module to generate sound-light alarm information if the current working state of the air switch is an off state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay;
and the return module is used for returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the trigger condition of finishing the operation.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the steps of the method described above when executing the computer program.
In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method described above.
In a fifth aspect, the present application further provides a computer program product. The computer program product comprises a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method.
The method, the device, the computer equipment, the storage medium and the computer program product for monitoring the misoperation of the air switch are applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored; performing an initialization operation by controlling an air switch monitoring system; in the initialized air switch monitoring system, detecting the current working state of the air switch and the loop current flowing into the overcurrent relay; if the current working state of the air switch is a disconnected state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay, the control state monitoring module generates false disconnection prompting information aiming at the air switch and controls the visual alarm module to generate sound and light alarm information; returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the triggering condition for finishing the operation; therefore, when the current working state of the air switch is in a disconnected state, if the loop current flowing into the overcurrent relay is smaller than the preset current threshold corresponding to the overcurrent relay, the air switch can be accurately judged to be in a false disconnection state, and sound and light alarm information and false disconnection prompt information aiming at the air switch are controlled and generated aiming at the false disconnection state of the air switch; the reliable visual monitoring of the current working state of the air switch is realized, and the monitoring effect of the working state of the air switch is improved.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for monitoring malfunction of an air switch according to an embodiment;
FIG. 2 is a schematic diagram of a circuit structure corresponding to a status monitor module according to an embodiment;
FIG. 3 is a schematic flow chart illustrating a method for monitoring malfunction of an air switch according to another embodiment;
FIG. 4 is a schematic diagram of an embodiment of an air switch monitoring system;
FIG. 5 is a schematic diagram of an AC loop structure corresponding to a condition monitoring module in one embodiment;
fig. 6 is a schematic diagram of a structure of a rectifying circuit corresponding to a rectifying module in one embodiment;
fig. 7 is a schematic structural diagram of a dc circuit corresponding to a visual alarm module in an embodiment;
FIG. 8 is a schematic flow chart of another method for monitoring malfunction of an air switch in accordance with an embodiment;
FIG. 9 is a circuit timing diagram of an air switch monitoring system in one embodiment;
fig. 10 is a block diagram showing a malfunction monitoring apparatus of an air switch according to an embodiment;
FIG. 11 is a diagram illustrating an internal structure of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.
The method for monitoring the misoperation of the air switch is applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; wherein the state monitoring module is provided with an overcurrent relay and an air switch to be monitored. In this embodiment, the method includes the steps of:
and step S110, controlling the air switch monitoring system to execute initialization operation.
In specific implementation, the air switch monitoring system can control the air switch monitoring system to execute initialization operation, so that the air switch is in a working closed state.
Step S120, in the initialized air switch monitoring system, a current operating state of the air switch and a loop current flowing into the overcurrent relay are detected.
The overcurrent relay is arranged in a main circuit corresponding to the branch where the air switch is located.
In a specific implementation, in an initialized air switch monitoring system, the current working state of an air switch in a state monitoring module and a loop current flowing into an overcurrent relay are detected. The overcurrent relay is arranged in a main circuit corresponding to a branch where the air switch is located, and when the air switch is in a disconnection state, the air switch can be judged to be in a false disconnection state or an overload disconnection state by detecting the current of the loop current flowing into the overcurrent relay.
And S130, if the current working state of the air switch is a disconnection state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay, controlling the state monitoring module to generate false disconnection prompt information aiming at the air switch, and controlling the visual alarm module to generate audible and visual alarm information.
The preset current threshold may be named as an operation current of the overcurrent relay in practical application.
In specific implementation, if the initialized air switch monitoring system detects that the current working state of the air switch is a disconnected state and the loop current flowing into the overcurrent relay is smaller than the preset current threshold corresponding to the overcurrent relay, the disconnected state of the air switch is determined to be a false disconnection state, the state monitoring module is controlled to generate false disconnection prompt information aiming at the air switch, and the visual alarm module is controlled to generate sound and light alarm information.
And step S140, returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the trigger condition for finishing the operation.
The trigger condition for ending the operation may be that the air switch monitoring system receives an instruction for ending the operation.
In specific implementation, the air switch monitoring system may return to the step of controlling the air switch monitoring system to execute the initialization operation, and continuously detect the current working state of the air switch and the loop current flowing into the overcurrent relay until the air switch monitoring system meets the trigger condition for ending the operation.
The misoperation monitoring method of the air switch is applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored; performing an initialization operation by controlling an air switch monitoring system; in the initialized air switch monitoring system, detecting the current working state of the air switch and the loop current flowing into the overcurrent relay; if the current working state of the air switch is a disconnected state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay, the control state monitoring module generates false disconnection prompting information aiming at the air switch and controls the visual alarm module to generate sound and light alarm information; returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the triggering condition for finishing the operation; therefore, when the current working state of the air switch is in a disconnected state, if the loop current flowing into the overcurrent relay is smaller than the preset current threshold corresponding to the overcurrent relay, the air switch can be accurately judged to be in a false disconnection state, and sound-light alarm information and false disconnection prompt information aiming at the air switch are controlled and generated aiming at the false disconnection state of the air switch; the reliable visual monitoring of the current working state of the air switch is realized, and the monitoring effect of the working state of the air switch is improved.
In one embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element connected in parallel; the first state display element is connected in series with the air switch; the control state monitoring module generates false turn-off prompting information aiming at the air switch, and the method comprises the following steps: controlling the first state display element to change from an open state to a closed state; controlling the second state display element to change from an off state to an on state; and controlling the third state display element to keep the closed state.
The opening state of the first state display element is used for representing that the air switch is in a working closing state.
The opening state of the second state display element is used for representing that the opening state of the air switch is a false opening state.
Wherein the off state of the third state display element is used to indicate that the air switch is not in the overload off state.
The circuit of the state monitoring module is an alternating current circuit.
The first state display element, the second state display element and the third state display element may be alternating current lamps.
In specific implementation, the state monitoring module is also provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch. In the initialized air switch monitoring system, a first state display element is in an open state; the second state display element and the third state display element are in an off state. In the process that the air switch monitoring system controls the state monitoring module to generate the mistaken-disconnection prompting information aiming at the air switch, the air switch monitoring system controls a first state display element in the state monitoring module to change from an on state to an off state; the opening state of the first state display element is used for representing that the air switch is in a working closing state; the air switch monitoring system controls a second state display element in the state monitoring module to change from an off state to an on state; the opening state of the second state display element is used for representing that the disconnection state of the air switch is a false disconnection state; the air switch monitoring system controls a third state display element in the state monitoring module to keep in a closed state; wherein the off state of the third state display element is used to indicate that the air switch is not in the overload off state.
According to the technical scheme of the embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch; changing the on state of the display element into the off state by controlling the first state; the opening state of the first state display element is used for representing that the air switch is in a working closing state; controlling the second state display element to change from an off state to an on state; the opening state of the second state display element is used for representing that the disconnection state of the air switch is a false disconnection state; controlling the third state display element to keep a closed state; the closing state of the third state display element is used for representing that the air switch is not in the overload disconnection state; therefore, the current working state of the air switch can be clearly displayed to be the error disconnection state through the opening state or the closing state of the first state display element, the second state display element and the third state display element, the reliable visual monitoring of the air switch is realized, and the working state of the air switch can be efficiently monitored.
In one embodiment, the air switch monitoring system further comprises a rectification module; the state monitoring module is provided with a first branch, a second branch, a third branch and a trunk; the first branch circuit is provided with an air switch, a contactor coil and a first state display element which are connected in series; the second branch circuit is provided with a first normally closed switch which is connected in series and corresponds to a coil of the contactor, a normally closed contact which corresponds to the overcurrent relay and a second state display element; the third branch circuit is provided with a second normally closed switch which is connected in series and corresponds to the coil of the contactor, a normally open contact which corresponds to the overcurrent relay and a third state display element; the trunk circuit is provided with an overcurrent relay; the overcurrent relay is connected in series with a voltage transformer in the rectifying module and a third normally-closed switch corresponding to the coil of the contactor;
the method further comprises the following steps: a third normally closed switch in the control rectification module is changed from an open state to a closed state, and a coil of the contactor is controlled to be changed from a power-on state to a power-off state; the first normally closed switch in the second branch circuit is controlled to be changed from an open state to a closed state, and the normally closed contact corresponding to the overcurrent relay keeps the closed state so as to control the second state display element to be changed from the closed state to an open state; and controlling a second normally closed switch in the third branch circuit to change from an open state to a closed state, and keeping a normally open contact corresponding to the overcurrent relay in the open state so as to control a third state display element to keep the closed state.
The first state display element, the second state display element and the third state display element may be alternating current lamps.
In specific implementation, to facilitate understanding by those skilled in the art, fig. 2 provides a schematic diagram of a circuit structure corresponding to a state monitoring module. As shown in the figure, the circuit of the state monitoring module is an alternating current circuit; the state monitoring module is provided with a first branch 201, a second branch 202, a third branch 203 and a trunk 20; the first branch is provided with an air switch OF, a contactor coil F and a first state display element D0 which are connected in series; the second branch circuit is provided with a first normally closed switch F1 corresponding to a coil of the contactor, a normally closed contact SD1 corresponding to the overcurrent relay and a second state display element D1 which are connected in series; meanwhile, a first power resistor R1 connected in series with the first normally closed switch F1, the normally closed contact SD1, and the second state display element D1 may be further provided in the second branch; the third branch circuit is provided with a second normally closed switch F2 corresponding to a contactor coil, a normally open contact SD2 corresponding to an overcurrent relay and a third state display element D2 which are connected in series; meanwhile, the third branch circuit can also be provided with a second power resistor R2 which is connected with a second normally closed switch F2, a normally open contact SD2 and a third state display element D2 in series; the trunk circuit comprises an overcurrent relay; SD is overcurrent relay coil; the overcurrent relay is connected in series with a voltage transformer in the rectifying module and a third normally-closed switch F3 corresponding to the contactor coil F; wherein, L is a live wire, and N is a zero wire.
When the current working state of the air switch is an open state and the loop current flowing into the overcurrent relay is smaller than a preset current threshold corresponding to the overcurrent relay, namely the air switch is in a false open state, a third normally-closed switch F3 in the rectifier module is changed from the open state to a closed state; the contactor coil changes from a power-on state to a power-off state; since the air switch OF is in the false off state, the first state display element D0 changes from the on state to the off state; meanwhile, the first normally closed switch F1 in the second branch is changed from an open state to a closed state, and since the loop current is smaller than a preset current threshold, the normally closed contact SD1 corresponding to the overcurrent relay is kept in the closed state to control the second state display element D1 to be changed from the closed state to the open state; meanwhile, the second normally-closed switch F2 in the third branch is changed from the open state to the closed state, and since the loop current is smaller than the preset current threshold, the normally-open contact SD2 corresponding to the overcurrent relay maintains the open state, so as to control the third state display element D2 to maintain the closed state.
According to the technical scheme of the embodiment, the third normally-closed switch in the rectifying module is controlled to be changed from an open state to a closed state, and the coil of the contactor is controlled to be changed from a power-on state to a power-off state; the first normally closed switch in the second branch circuit is controlled to be changed from an open state to a closed state, and the normally closed contact corresponding to the overcurrent relay keeps the closed state so as to control the second state display element to be changed from the closed state to an open state; the second normally-closed switch in the third branch circuit is controlled to be changed from an open state to a closed state, and a normally-open contact corresponding to the overcurrent relay keeps the open state so as to control the third state display element to keep the closed state; thus, when the air switch in the first branch of the state monitoring module is mistakenly opened, the third normally-closed switch connected in series with the voltage transformer and the overcurrent relay in the main line of the state monitoring module is changed from an opened state to a closed state, the first normally-closed switch in the second branch is changed from the opened state to the closed state, and the normally-closed contact corresponding to the overcurrent relay is kept in the closed state; a second normally closed switch in the third branch circuit is changed from an open state to a closed state, and a normally open contact corresponding to the overcurrent relay keeps the open state; when the air switch on the voltage transformer side is disconnected by mistake, the second branch circuit connected with the voltage transformer is in a closed state, bypass protection for the voltage transformer is achieved, the voltage transformer cannot be damaged due to the fact that a circuit is opened, and safety of the air switch monitoring system is improved.
In one embodiment, the visual alarm module is provided with a controller, a voice alarm element, a wireless alarm element and a light display element; control visual alarm module and generate audible and visual alarm information, include: the controller controls the voice alarm element and the light display element to change from the closed state to the open state, and controls the wireless alarm element to generate abnormal prompt information according to a preset time interval.
The opening states of the voice alarm element and the light display element are used for representing that the air switch is in an off state.
Wherein the controller may be a microcontroller.
Wherein, the voice alarm element can be a buzzer.
Wherein, the wireless alarm element can be WiFi.
Wherein the bright display element may be a light emitting diode.
In the concrete implementation, the visual alarm module is provided with a controller, a voice alarm element, a wireless alarm element and a light display element. In the process that the air switch monitoring system controls the visual alarm module to generate the acousto-optic alarm information, the controller in the visual alarm module can control the voice alarm element and the light display element to change from a closed state to an open state so as to generate the acousto-optic alarm information and represent that the air switch is in a disconnected state; meanwhile, the controller also needs to control the wireless alarm element to generate abnormal prompt information according to a preset time interval. Specifically, the controller starts to time at the working moment and controls the wireless alarm element to give an alarm at preset time intervals.
According to the technical scheme of the embodiment, the visual alarm module is provided with a controller, a voice alarm element, a wireless alarm element and a light display element; the controller controls the voice alarm element and the light display element to change from a closed state to an open state, and controls the wireless alarm element to generate abnormal prompt information according to a preset time interval; the opening states of the voice alarm element and the light display element are used for representing that the air switch is in an off state; therefore, the on-state of the voice alarm element and the bright display element and the abnormal prompt information generated by the wireless alarm element can represent that the air switch is in the off state, the reliable visual monitoring of the working state of the air switch is realized, the open circuit phenomenon in the air switch monitoring system can be processed by a target object, and the safety of the air switch monitoring system is improved.
In one embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element connected in parallel; the first state display element is connected in series with the air switch; if the current working state of the air switch is a disconnected state and the loop current is greater than the preset current threshold corresponding to the overcurrent relay, the method further comprises the following steps: controlling the first state display element to change from an open state to a closed state; controlling the second state display element to keep a closed state; and controlling the third state display element to change from the off state to the on state.
The opening state of the first state display element is used for representing that the air switch is in a working closing state.
The closed state of the second state display element is used for representing that the air switch is not in a false disconnection state.
The opening state of the third state display element is used for representing that the opening state of the air switch is an overload opening state.
Wherein, the circuit of the state monitoring module is an alternating current circuit.
The first state display element, the second state display element and the third state display element may be alternating current lamps.
In specific implementation, the state monitoring module is also provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch. In the initialized air switch monitoring system, a first state display element is in an opening state; the second state display element and the third state display element are in an off state. If the current working state of the air switch is a disconnection state and the loop current is greater than the preset current threshold corresponding to the overcurrent relay, the air switch monitoring system controls the state monitoring module to generate overload disconnection prompt information aiming at the air switch and controls the visual alarm module to generate acousto-optic alarm information.
In the process that the air switch monitoring system controls the state monitoring module to generate the overload disconnection prompt information aiming at the air switch, the air switch monitoring system can control a first state display element in the state monitoring module to change from an on state to an off state; the opening state of the first state display element is used for representing that the air switch is in a working closing state; the air switch monitoring system controls a second state display element in the state monitoring module to keep in a closed state; the closed state of the second state display element is used for representing that the air switch is not in a false disconnection state; the air switch monitoring system controls a third state display element in the state monitoring module to change from an off state to an on state; the opening state of the third state display element is used for representing that the opening state of the air switch is an overload opening state.
According to the technical scheme of the embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch; if the current working state of the air switch is a disconnection state and the loop current is greater than a preset current threshold corresponding to the overcurrent relay, the first state display element is controlled to change from an opening state to a closing state; the opening state of the first state display element is used for representing that the air switch is in a working closing state; controlling the second state display element to keep a closed state; the closed state of the second state display element is used for representing that the air switch is not in a false disconnection state; controlling the third state display element to change from the closed state to the open state; the opening state of the third state display element is used for representing that the disconnection state of the air switch is an overload disconnection state; therefore, the current working state of the air switch can be clearly displayed to be an overload disconnection state through the opening state or the closing state of the first state display element, the second state display element and the third state display element, the reliable visual monitoring of the air switch is realized, and the working state of the air switch can be efficiently monitored.
In one embodiment, the air switch monitoring system further comprises a rectification module connected with the visual alarm module and the state monitoring module; the rectifying module is provided with a rectifying element group and a voltage transformer; the visual alarm module is provided with a filter element and a direct current voltage stabilizing element; the method further comprises the following steps: the rectifying element group rectifies the alternating voltage output by the voltage transformer to obtain rectified voltage; the filter element carries out filtering processing on the rectified voltage to obtain a filtered voltage; and the direct current voltage stabilizing element performs voltage stabilization treatment on the filtered voltage to obtain a stabilized direct current voltage.
The stabilized direct-current voltage is used for controlling the visual alarm module to generate acousto-optic alarm information.
Wherein, the rectifier component group is composed of rectifier diode groups.
The dc voltage stabilizing element may be a dc voltage stabilizing chip.
The filter element may be a filter capacitor.
Wherein, the return circuit of visual alarm module is direct current return circuit.
In a specific implementation, the air switch monitoring system further comprises a rectification module connected with the visual alarm module and the state monitoring module; the rectifying module is provided with a rectifying element group and a voltage transformer; the visual alarm module is provided with a direct current voltage stabilizing element and a filtering element; when the current working state of the air switch is a disconnection state, the rectifier component group rectifies the alternating-current voltage output by the voltage transformer to obtain rectified voltage; the filter element carries out filtering processing on the rectified voltage to obtain a filtered voltage; the direct current voltage stabilizing element performs voltage stabilization on the filtered voltage to obtain a stabilized direct current voltage; the stabilized direct current voltage is used for controlling the visual alarm module to generate acousto-optic alarm information.
According to the technical scheme of the embodiment, the air switch monitoring system further comprises a rectification module connected with the visual alarm module and the state monitoring module; the rectifying module is provided with a rectifying element group and a voltage transformer; the visual alarm module is provided with a direct current voltage stabilizing element and a filtering element; rectifying the alternating voltage output by the voltage transformer through a rectifying element group to obtain rectified voltage; the filter element carries out filtering processing on the rectified voltage to obtain a filtered voltage; the direct current voltage stabilizing element performs voltage stabilization on the filtered voltage to obtain a stabilized direct current voltage; the stabilized direct-current voltage is used for controlling the visual alarm module to generate acousto-optic alarm information; therefore, the alternating current voltage output by the voltage transformer is rectified, filtered and stabilized to obtain the stabilized direct current voltage, so that the direct current loop of the visual alarm module can directly use the alternating current voltage of the voltage transformer to realize stable direct current power supply; and a secondary direct-current power supply does not need to be independently installed, so that the system cost of the air switch monitoring system is reduced.
In another embodiment, as shown in fig. 3, a malfunction monitoring method of an air switch is provided, which is exemplified by applying the method to an air switch monitoring system, and the air switch monitoring system includes a visual alarm module and a status monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored, and the method comprises the following steps:
and step S310, controlling the air switch monitoring system to execute initialization operation.
In step S320, in the initialized air switch monitoring system, the current operating state of the air switch and the loop current flowing into the overcurrent relay are detected.
Step S330, if the current working state of the air switch is a disconnected state and the loop current is greater than a preset current threshold corresponding to the overcurrent relay, controlling the first state display element to change from an open state to a closed state; controlling the second state display element to keep the closed state; controlling the third state display element to change from the closed state to the open state; and controlling the voice alarm element and the light display element to change from the closed state to the open state, and controlling the wireless alarm element to generate abnormal prompt information according to a preset time interval.
And step S340, returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the trigger condition for finishing the operation.
It should be noted that, for the specific limitations of the above steps, reference may be made to the above specific limitations of a malfunction monitoring method for an air switch.
To facilitate understanding by those skilled in the art, fig. 4 provides a schematic diagram of a circuit configuration of an air switch monitoring system. As shown in fig. 4, OF in the circuit is an air switch. F is a contactor coil, F1, F2 and F3 are respectively a first normally closed switch, a second normally closed switch and a third normally closed switch corresponding to the contactor coil, SD is an overcurrent relay coil, SD1 and SD2 are respectively a normally closed contact and a normally open contact corresponding to the overcurrent relay coil, R1 and R2 are respectively a first power resistor and a second power resistor, and the resistance value is 10 omega. D0, D1 and D2 are ac lamps, respectively a normal operation indicator lamp (corresponding to the first state display element), a false-off indicator lamp (corresponding to the second state display element) and an overload-off indicator lamp (corresponding to the third state display element), and have a rated voltage of 220V. L is a live wire, N is a zero line, T1 is a transformer, and T1 converts 220V alternating voltage into 9V alternating voltage. D3, D4, D5 and D6 are rectifier diodes, and D3, D4, D5 and D6 form a rectifier element group for rectifying the alternating voltage. C1, C2, C3, C4 are filter capacitors, and the capacitance values are 1000 muF, 10pF respectively. U1 is a direct current voltage stabilization chip LM2576, and U2 is a microcontroller STC89C 52. L1 is a freewheeling inductor with an inductance of 450 μ H. R4 and R5 are electronic resistors with the resistance value of 1 omega, and R3 is a potentiometer with the resistance value of 10k omega. D7 is a light emitting diode (corresponding to a bright display element). WiFi refers to a wireless alarm module WiFi (equivalent to a wireless alarm element), and B refers to a buzzer (equivalent to a voice alarm element).
The air switch monitoring system comprises a state monitoring module, a rectifying module and a visual alarm module.
To facilitate understanding of those skilled in the art, fig. 5 provides a schematic diagram of an ac loop structure corresponding to the state monitoring module. As shown in fig. 5, when the air switch OF in the ac circuit is turned off by mistake, the circuit current I flowing into the overcurrent relay SD is smaller than the operating current I corresponding to the overcurrent relay SD, the contactor coil F is de-energized, the normally closed switches F1, F2, and F3 are closed, the lamp OF the normal operation indicator lamp D0 is turned off, and the overcurrent relay coil SD is energized, and since the circuit current I is smaller than the operating current I OF SD, the normally closed contact SD1 is kept closed, the normally open contact SD2 is kept open, the lamp OF the mistakenly open indicator lamp D1 is turned on, and the lamp OF the overload open indicator lamp D2 is turned off. When the AC loop is in an open state OF due to overload, the contactor coil F loses power, the normally closed switches F1, F2 and F3 are closed, the indicator lamp D0 in normal operation is turned off, the overcurrent relay coil SD is powered on, the normally closed contact SD1 is turned off and the normally open contact SD2 is closed because the overload loop current I is greater than the SD action current I, the indicator lamp D1 in false open is turned off at the moment, and the indicator lamp D2 in overload open is turned on. At this time, it is detected again whether the ac circuit air switch OF is turned off by mistake. When the ac circuit air switch OF is closed, the contactor coil F is energized, and the normally closed switches F1, F2, and F3 are opened.
To facilitate understanding of those skilled in the art, fig. 6 provides a schematic diagram of a rectifying circuit structure corresponding to a rectifying module. When the air switch OF OF the alternating current loop is switched off by mistake or is switched off by overload, the coil F OF the contactor loses power, the normally closed switches F1, F2 and F3 are closed, and the rectifying loop starts to work. When the AC circuit air switch OF is closed, the contactor coil F is electrified, the normally closed switches F1, F2 and F3 are disconnected, and the rectifying circuit stops working.
In order to facilitate understanding of those skilled in the art, fig. 7 provides a schematic diagram of a dc loop structure corresponding to a visual alarm module. When the air switch OF OF the alternating current loop is switched off by mistake or is switched off by overload, the coil F OF the contactor loses power, the normally closed switches F1, F2 and F3 are closed, the rectifying loop starts to work, the direct current loop starts to work, and the microcontroller U2 starts to work. The microcontroller U2 controls the light-emitting diode D7 to be lightened and controls the buzzer B to give an alarm. And the microcontroller U2 starts to work and count time at the moment, and sends out an alarm once every 60 seconds through the WiFi module. When the air switch OF the alternating current loop is closed, the coil SD OF the overcurrent relay and the coil F OF the contactor are energized, the normally closed switches F1, F2, and F3 are opened, the rectifier loop stops working, and the direct current loop stops working.
It can be understood that when the air switch OF is opened, the ac circuit, the rectifier circuit, and the dc circuit operate simultaneously, and when the air switch OF is closed, the ac circuit, the rectifier circuit, and the dc circuit are opened simultaneously.
To facilitate understanding by those skilled in the art, fig. 8 provides a schematic flow chart of another method for monitoring malfunction of an air switch. It should be noted that, for the specific limitations of the above steps, reference may be made to the above specific limitations of the malfunction monitoring method for the air switch, and details are not described here again.
To facilitate understanding of those skilled in the art, fig. 9 provides a timing diagram of a circuit of an air switch monitoring system in a malfunction monitoring method of an air switch. As shown in fig. 9, the abscissa represents time in seconds, and the ordinate represents the state of each of the operation elements. When 0 second exists, the air switch monitoring system executes initialization operation, the air switch OF is in a closed state, the contactor coil F is in an electrified state, and the normally closed switches F1, F2 and F3 are in an open state; overcurrent relay coil SD is in an energized state; the normally closed contact SD1 is in a closed state, and the normally open contact SD2 is in an open state; the lamp of the normal working indicator lamp D0 is on, and the lamps of the false turn-off indicator lamp D1 and the overload turn-off indicator lamp D2 are off; the buzzer B and the light emitting diode D7 are in an off state, and the WIFI is in an off state.
When the air switch OF is disconnected in 10 seconds, the lamp OF the indicating lamp D0 which normally works is turned off, the loop current flowing into the overcurrent relay is smaller than the preset current threshold corresponding to the overcurrent relay, the coil F OF the contactor loses power, the normally closed switches F1, F2 and F3 are closed, the normally closed contact SD1 is closed, the normally open contact SD2 is disconnected, and the lamp OF the indicating lamp D1 which is turned on by mistake is turned on. Meanwhile, the rectification loop and the direct current loop start to work, the microcontroller U2 controls the light emitting diode D7 to be on, the buzzer B to give an alarm, and the WIFI is controlled to give an alarm every 60 seconds.
When the air switch OF is closed in 130 seconds, the lamp OF the normal work indicator lamp D0 is turned on, the coil F OF the contactor is electrified, the normally closed switches F1, F2 and F3 are disconnected, and the rectifying circuit and the direct current circuit stop working.
And OF is disconnected at 170 seconds, a D0 lamp is turned off, the loop current flowing into the overcurrent relay is smaller than the corresponding preset current threshold value OF the overcurrent relay, the coil F OF the contactor loses power, the normally closed switches F1, F2 and F3 are closed, the normally closed contact SD1 is disconnected, the normally open contact SD2 is closed, and the overload disconnection indicator lamp D2 is turned on. Meanwhile, the rectification loop and the direct current loop start to work, the microcontroller U2 controls the light emitting diode D7 to be on, the buzzer B to give an alarm, and the WIFI is controlled to give an alarm every 60 seconds.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the application also provides a malfunction monitoring device of the air switch, which is used for realizing the malfunction monitoring method of the air switch. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so that specific limitations in the embodiment of the malfunction monitoring device for one or more air switches provided below can refer to the limitations on the malfunction monitoring method for one air switch in the above description, and are not described again here.
In one embodiment, as shown in fig. 10, a malfunction monitoring device for an air switch is provided, which is applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored; the device comprises: an initialization module 1010, a detection module 1020, a control module 1030, and a return module 1040, wherein:
an initialization module 1010 configured to control the air switch monitoring system to perform an initialization operation.
A detecting module 1020, configured to detect a current operating state of the air switch and a loop current flowing into the over-current relay in the initialized air switch monitoring system.
And the control module 1030 is configured to control the state monitoring module to generate false-off prompt information for the air switch and control the visual alarm module to generate audible and visual alarm information if the current working state of the air switch is a disconnected state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay.
The returning module 1040 is configured to return to the step of controlling the air switch monitoring system to perform the initialization operation until the air switch monitoring system meets a trigger condition for ending the operation.
In one embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch; the control module 1030 is specifically configured to control the first state display element to change from an on state to an off state; the opening state of the first state display element is used for representing that the air switch is in a working closing state; controlling the second state display element to change from an off state to an on state; the opening state of the second state display element is used for representing that the off state of the air switch is a false off state; controlling the third state display element to maintain an off state; the closed state of the third state display element is used to indicate that the air switch is not in an overload off state.
In one embodiment, the air switch monitoring system further comprises a rectification module; the state monitoring module is provided with a first branch circuit, a second branch circuit, a third branch circuit and a trunk circuit; the first branch is provided with the air switch, the contactor coil and the first state display element which are connected in series; the second branch circuit is provided with a first normally closed switch corresponding to the contactor coil, a normally closed contact corresponding to the overcurrent relay and a second state display element which are connected in series; the third branch circuit is provided with a second normally closed switch corresponding to the contactor coil, a normally open contact corresponding to the overcurrent relay and a third state display element which are connected in series; the trunk includes the overcurrent relay; the overcurrent relay is connected in series with a voltage transformer in the rectifying module and a third normally-closed switch corresponding to the contactor coil; the device further comprises: the first control submodule is used for controlling the third normally-closed switch in the rectifying module to change from an open state to a closed state and controlling the contactor coil to change from a power-on state to a power-off state; the first normally closed switch in the second branch circuit is controlled to be changed from an open state to a closed state, and the normally closed contact corresponding to the overcurrent relay keeps the closed state so as to control the second state display element to be changed from the closed state to an open state; and controlling the second normally-closed switch in the third branch circuit to change from an open state to a closed state, wherein a normally-open contact corresponding to the overcurrent relay keeps the open state, so as to control the third state display element to keep the closed state.
In one embodiment, the visual alarm module is provided with a controller, a voice alarm element, a wireless alarm element and a light display element; the control module 1030 is specifically configured to control the controller to change the voice alarm element and the bright display element from an off state to an on state, and control the wireless alarm element to generate an abnormal prompt message according to a preset time interval; the opening states of the voice alarm element and the light display element are used for representing that the air switch is in the off state.
In one embodiment, the state monitoring module is further provided with a first state display element, a second state display element and a third state display element which are connected in parallel; the first state display element is connected in series with the air switch; if the current working state of the air switch is a disconnection state, and the loop current is greater than a preset current threshold corresponding to the overcurrent relay; the device further comprises: a second control sub-module for the method further comprising: controlling the first state display element to change from an on state to an off state; the opening state of the first state display element is used for representing that the air switch is in a working closing state; controlling the second state display element to maintain an off state; the closed state of the second state display element is used for representing that the air switch is not in a false disconnection state; controlling the third state display element to change from an off state to an on state; the on state of the third state display element is used for representing that the off state of the air switch is an overload off state.
In one embodiment, the air switch monitoring system further comprises a rectification module connected with the visual alarm module and the state monitoring module; the rectifying module is provided with a rectifying element group and a voltage transformer; the visual alarm module is provided with a filter element and a direct current voltage stabilizing element; the device further comprises: the rectification processing module is used for rectifying the alternating voltage output by the voltage transformer by the rectification element group to obtain rectified voltage; the filtering processing module is used for filtering the rectified voltage by the filtering element to obtain a filtered voltage; the voltage stabilizing processing module is used for the direct current voltage stabilizing element to perform voltage stabilizing processing on the filtered voltage to obtain a stabilized direct current voltage; the stabilized direct current voltage is used for controlling the visual alarm module to generate acousto-optic alarm information.
All or part of the modules in the malfunction monitoring device of the air switch can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 11. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing monitoring data of each element in the air switch monitoring system. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement an air switch monitoring system method.
Those skilled in the art will appreciate that the architecture shown in fig. 11 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, a computer device is further provided, which includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above method embodiments when executing the computer program.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
In an embodiment, a computer program product is provided, comprising a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It should be noted that, the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include a Read-Only Memory (ROM), a magnetic tape, a floppy disk, a flash Memory, an optical Memory, a high-density embedded nonvolatile Memory, a resistive Random Access Memory (ReRAM), a Magnetic Random Access Memory (MRAM), a Ferroelectric Random Access Memory (FRAM), a Phase Change Memory (PCM), a graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases involved in the embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (10)

1. A malfunction monitoring method of an air switch is characterized by being applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored; the method comprises the following steps:
controlling the air switch monitoring system to perform an initialization operation;
detecting the current working state of the air switch and the loop current flowing into the overcurrent relay in the initialized air switch monitoring system;
if the current working state of the air switch is a disconnection state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay, controlling the state monitoring module to generate false disconnection prompting information aiming at the air switch, and controlling the visual alarm module to generate sound and light alarm information;
and returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the triggering condition for finishing the operation.
2. The method according to claim 1, wherein the status monitoring module is further provided with a first status display element, a second status display element and a third status display element connected in parallel; the first state display element is connected in series with the air switch; the controlling the state monitoring module to generate the false turn-off prompting information aiming at the air switch comprises the following steps:
controlling the first state display element to change from an on state to an off state; the opening state of the first state display element is used for representing that the air switch is in a working closing state;
controlling the second state display element to change from an off state to an on state; the on state of the second state display element is used for representing that the off state of the air switch is a false off state;
controlling the third state display element to maintain an off state; the off state of the third state display element is used to characterize that the air switch is not in an overload off state.
3. The method of claim 2, wherein the air switch monitoring system further comprises a rectification module; the state monitoring module is provided with a first branch circuit, a second branch circuit, a third branch circuit and a trunk circuit; the first branch is provided with the air switch, the contactor coil and the first state display element which are connected in series; the second branch circuit is provided with a first normally closed switch corresponding to the contactor coil, a normally closed contact corresponding to the overcurrent relay and a second state display element which are connected in series; the third branch circuit is provided with a second normally closed switch corresponding to the contactor coil, a normally open contact corresponding to the overcurrent relay and a third state display element which are connected in series; the trunk circuit is provided with the overcurrent relay; the overcurrent relay is connected in series with a voltage transformer in the rectifying module and a third normally-closed switch corresponding to the contactor coil; the method further comprises the following steps:
the third normally-closed switch in the rectifying module is controlled to change from an open state to a closed state, and the contactor coil is controlled to change from a power-on state to a power-off state;
the first normally closed switch in the second branch circuit is controlled to be changed from an open state to a closed state, and the normally closed contact corresponding to the overcurrent relay keeps the closed state so as to control the second state display element to be changed from the closed state to an open state;
and controlling the second normally closed switch in the third branch circuit to change from an open state to a closed state, wherein the normally open contact corresponding to the overcurrent relay keeps the open state, so as to control the third state display element to keep the closed state.
4. The method according to claim 1, wherein the visual alarm module is provided with a controller, a voice alarm element, a wireless alarm element and a light display element; the control visual alarm module generates audible and visual alarm information, including:
the controller controls the voice alarm element and the light display element to change from a closed state to an open state, and controls the wireless alarm element to generate abnormal prompt information according to a preset time interval; the opening states of the voice alarm element and the light display element are used for representing that the air switch is in the off state.
5. The method according to claim 1, wherein the status monitoring module is further provided with a first status display element, a second status display element and a third status display element connected in parallel; the first state display element is connected in series with the air switch; if the current working state of the air switch is a disconnected state and the loop current is greater than a preset current threshold corresponding to the overcurrent relay, the method further comprises the following steps:
controlling the first state display element to change from an on state to an off state; the opening state of the first state display element is used for representing that the air switch is in a working closing state;
controlling the second state display element to maintain an off state; the closed state of the second state display element is used for representing that the air switch is not in a false disconnection state;
controlling the third state display element to change from an off state to an on state; the on state of the third state display element is used to characterize the off state of the air switch as an overload off state.
6. The method of claim 1 or 5, wherein the air switch monitoring system further comprises a rectification module connected to the visual alarm module and the status monitoring module; the rectifying module is provided with a rectifying element group and a voltage transformer; the visual alarm module is provided with a filter element and a direct current voltage stabilizing element; the method further comprises the following steps:
the rectifying element group rectifies the alternating-current voltage output by the voltage transformer to obtain rectified voltage;
the filter element is used for filtering the rectified voltage to obtain a filtered voltage;
the direct current voltage stabilizing element performs voltage stabilization on the filtered voltage to obtain a stabilized direct current voltage; the stabilized direct current voltage is used for controlling the visual alarm module to generate acousto-optic alarm information.
7. A malfunction monitoring device of an air switch is characterized by being applied to an air switch monitoring system; the air switch monitoring system comprises a visual alarm module and a state monitoring module; the state monitoring module is provided with an overcurrent relay and an air switch to be monitored; the device comprises:
the initialization module is used for controlling the air switch monitoring system to execute initialization operation;
the detection module is used for detecting the current working state of the air switch and the loop current flowing into the overcurrent relay in the initialized air switch monitoring system;
the control module is used for controlling the state monitoring module to generate false turn-off prompting information aiming at the air switch and controlling the visual alarm module to generate sound and light alarm information if the current working state of the air switch is a turn-off state and the loop current is smaller than a preset current threshold corresponding to the overcurrent relay;
and the return module is used for returning to the step of controlling the air switch monitoring system to execute the initialization operation until the air switch monitoring system meets the trigger condition of finishing the operation.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any one of claims 1 to 6 when executing the computer program.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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